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首页 diamide衍生物驱动的高稳定 quasi 固态染料敏化太阳能电池
diamide衍生物驱动的高稳定 quasi 固态染料敏化太阳能电池
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更新于2024-08-27
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标题:“稳定的半固态染料敏化太阳能电池利用胺类衍生物作为低分子量有机凝胶剂” 描述:这篇研究论文报道了一种新颖的稳定半固态染料敏化太阳能电池(Quasi-Solid-State Dye-Sensitized Solar Cell, QS-DSSC)设计,其中采用了一种胺类衍生物作为低分子量有机凝胶剂(Liquidelectrolyte gelator, LMOG)。通过这种创新的方法,研究人员成功地制备出了一种高性能的凝胶电解质,具有高凝胶温度(Tgel),这对于提高电池的热稳定性至关重要。 胺类衍生物在此研究中的关键作用在于其独特的分子结构,能够有效地将液态电解质转变为具有固态性质的凝胶,同时保持了电解质的离子导电性。这使得QS-DSSC能够在不牺牲效率的情况下,实现电解质的固态化,从而减少传统液态电解质易挥发、泄漏等问题,进一步提高了电池的长期稳定性和可靠性。 作者团队在论文中深入探讨了电子传输和复合过程的动态行为,通过实验研究了胺类衍生物在电池内部的作用机制,揭示了其如何优化了能量转换效率和防止了内部短路的可能性。此外,他们对电池进行了加速老化测试,结果显示QS-DSSC在各种环境条件下展现出优异的稳定性,这对于实际应用中的太阳能电池具有重要意义。 关键词:染料敏化太阳能电池、半固态、电解质 该研究不仅在理论层面提供了新的视角来改进现有的太阳能电池技术,而且为开发更持久、高效和环境友好的能源解决方案奠定了基础。通过优化凝胶电解质的性能,这一工作可能引领未来的太阳能电池工业朝着更稳定、可靠和经济的方向发展。
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Stable quasi-solid-state dye-sensitized solar cell using a diamide
derivative as low molecular mass organogelator
Li Tao
a
,
1
, Zhipeng Huo
a
,
**
,
1
, Songyuan Dai
a
,
b
,
*
, Jun Zhu
a
, Changneng Zhang
a
,
Yang Huang
a
, Bing Zhang
b
, Jianxi Yao
b
a
Key Laboratory of Novel Thin-Film Solar Cells, Division of Solar Energy Materials and Engineering, Institute of Plasma Physics,
Chinese Academy of Sciences, Hefei, Anhui 230031, PR China
b
State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, PR China
highlights graphical abstract
A diamide derivative is used as LMOG
to gelate liquid electrolyte.
A novel and intrinsic stable gel elec-
trolyte with high T
gel
is prepared.
The kinetic processes of electron
transport and recombination are
investigated.
The QS-DSSC exhibits excellent sta-
bility during the accelerated aging
tests.
article info
Article history:
Received 27 January 2014
Received in revised form
12 March 2014
Accepted 26 March 2014
Available online 12 April 2014
Keywords:
Dye-sensitized solar cell
Quasi-solid-state
Electrolyte
Low molecular mass organogelator
Electron transport and recombination
Stability
abstract
High stability is a significant target for practical applications of dye-sensitized solar cells. 2-(1-
oxododecyl)hydrazide, a diamide derivative, is synthesized and applied in quasi-solid-state dye-sensi-
tized solar cells (QS-DSSCs) as a low molecular mass organogelator (LMOG). It is noteworthy that the
transition temperature from gel state to liquid state (T
gel
) of this gel electrolyte is 125.2
C, which ensures
the gel state of the electrolyte at the DSSC operating temperature. The influences of the gel electrolyte on
the kinetic processes of electron transport and recombination are investigated. The diffusion of redox
species in the gel electrolyte is hindered by the crosslinked network, and the decreased electron
recombination lifetime indicates an increased electron recombination in QS-DSSC. Significantly, the QS-
DSSC exhibits excellent thermal and light-soaking stabilities during accelerated aging tests for 1000 h.
Especially, there is almost no change in the short-circuit current density (J
sc
) in the QS-DSSC, while the J
sc
of the liquid electrolyte based DSSC decreases to 79e90% of their initial values. These results are very
important for the application and commercialization of DSSCs.
Ó 2014 Elsevier B.V. All rights reserved.
1. Introduction
Since the original development of sensitized nanocrystalline
solar cells (DSSCs) by Michael Grätzel and his coworkers [1], DSSCs
are considered to be one of the emerging solar technologies that
offers the potential to reduce the cost of photovoltaic electricity
generation. It is clear that stability is a prerequisite for application
of any photovoltaic technology and the extent of application is
limited by the level of stability that can ultimately be achieved. The
*
Corresponding author. Key Laboratory of Novel Thin-Film Solar Cells, Division of
Solar Energy Materials and Engineering, Institute of Plasma Physics, Chinese
Academy of Sciences, Hefei, Anhui 230031, PR China. Tel.: þ86 10 61772268.
**
Corresponding author. Tel.: þ86 551 65592190.
E-mail addresses: zhipenghuo@163.com (Z. Huo), sydai@ipp.ac.cn, solar@ipp.ac.
cn (S. Dai).
1
Li Tao and Zhipeng Huo contributed equally to this work.
Contents lists available at ScienceDirect
Journal of Power Sources
journal homepage: www.elsevier.com/locate/jpowsour
http://dx.doi.org/10.1016/j.jpowsour.2014.03.128
0378-7753/Ó 2014 Elsevier B.V. All rights reserved.
Journal of Power Sources 262 (2014) 444e 450
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